I have a UITableView, under which (not in the header!) I would like a new UIView. It's done in WhatsApp, in the Chats' tab (I' new in here so I can't add a picture!).
Any help will be greatly appreciated.
Regards
Create a parent UIView to contain you UITableView and the other UIView. Add these views as subviews to the parent view.
Edited Answer:
You could do this. Initialize 2 buttons or 2 views in..
In the cellForRowIndexPath :
UIView * superView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 45)];
[superView addSubview:view1];
[superView addSubview:view2];
// You should make sure that CGRectMake of view1 + view 2 = superView //
Check if (indexPath.row == lastRow)
{
[cell addSubview: superView]
}
Original Answer:
You should use
- (UIView *)tableView:(UITableView *)tableView viewForFooterInSection:(NSInteger)section
I think the exact answer you are looking for is available here !!
UITableView has a backgroundView property that you can set.
Related
I have a table in my masterView and in my detailView i have some imageView, based on different row selection in my masterView i have to remove ImageView and add some other views. Im unable to remove the ImageView.... any help ??? thanks in advance
try:
for (UIView *view in masterView.subviews){
if (view == yourImageView) {
[view removeFromSuperview];
}
}
first you provide tag values other than 0 to all your imageview
and then
for (UIView *sub in [self.view subviews]) {
use tag to find proper view and remove it from superView
}
I have a UITableViewController subclass used for entering settings for my app. I add custom buttons to the table footer by adding them to a view that I return in he call to tableView:viewForFooterInSection:.
- (UIView *)tableView:(UITableView *)tableView viewForFooterInSection:(NSInteger)section
{
CGRect viewRect = self.view.bounds;
float height = _settings.isNew ? 50.0 : 110.0;
float margin = (viewRect.size.width > 480.0) ? 44.0 : 10.0;
UIView *view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, viewRect.size.width, height)];
GradientButton* button = [[GradientButton alloc] initWithFrame:CGRectMake(margin, 5, viewRect.size.width - margin * 2, 44)];
[view addSubview:button];
[button addTarget:self action:#selector(testConnectionClicked:) forControlEvents:UIControlEventTouchUpInside];
[button release];
if (!_settings.isNew)
{
// I add another button
}
return [view autorelease];
}
- (CGFloat)tableView:(UITableView *)tableView heightForFooterInSection:(NSInteger)section
{
return _settings.isNew ? 50 : 110;
}
The whole point of subclassing from UITableViewController is to avoid problems with getting the cells scrolled into view when the keyboard appears.
This works mostly as it should, however when the edit moves to the last cell it seems to try to scroll the table footer into view. This means that it actually scrolls the editing textfield out of view when on iPhone in landscape view.
I solved this by adding an extra UIView below the tableview in my tableviewcontroller instead of setting some text in the footer of my last tableview section.
if you want that footer in multiple sections, this does not fix your problem of course.
Taking a hint from #ben-packard's answer, I discovered that the UITableViewController auto-scrolling isn't at fault; it's actually UITableView's -scrollToRowAtIndexPath:atScrollPosition:animated: that's causing the view to scroll too far. I have to imagine this behavior is intentional even though it's not documented, but in any case we can fix it by subclassing UITableView and overriding that method:
- (void)scrollToRowAtIndexPath:(NSIndexPath *)indexPath atScrollPosition:(UITableViewScrollPosition)scrollPosition animated:(BOOL)animated {
if (scrollPosition == UITableViewScrollPositionNone)
[self scrollRectToVisible:[self rectForRowAtIndexPath:indexPath] animated:animated];
else
[super scrollToRowAtIndexPath:indexPath atScrollPosition:scrollPosition animated:animated];
}
Did you implement tableView:heightForFooterInSection? It sounds like that could be the problem. If you implement tableView:viewForFooterInSection you must also implement tableView:heightForFooterInSection.
I suspect that the problem lies in your implementation of the scrolling on keyboard, but you didn't post any code from it.
Instead of subclassing a UITableView, why don't you do something like scrollToRowAtIndexPath:atScrollPosition:animated: when you do something that displays the keyboard? I found a similar thread here.
I found that scrolling to the rect instead (even though it is derived from the same row) seems to work:
CGRect rect = [myTableView rectForRowAtIndexPath:myIndexPath];
[myTableView scrollRectToVisible:rect animated:YES];
When you open Mail on an iPhone and tap Edit, select an email and tap Move, a UITableView appears with all the folders you can put the mail in. At the top is a transparent view that shows the email you selected. When you move your finger down, the view stays in place, when you move it up, the cells are visible through the transparent view.
How did apple configure this view? I thought of two ways, but they both don't work:
The view is returned as the header view of the UITableView. Doesn't work because the view stays at the top even if the table view is moved down.
The view is static at the top, the frame of the table view starts at the bottom of the transparent view. This doesn't work because when the table view is moved up, it is visible through the transparent view.
Any ideas on how to recreate this effect?
You need to create your transparent view and then add it as a subview to the view controller so it's a sibling of the UITableView. You would do this in the viewDidLoad() method.
- (void)viewDidLoad
{
int viewHeight = 50;
// Assume myTableView is a UITableView variable
myTableView = [[UITableView alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height - 44) style:UITableViewStylePlain];
myTableView.scrollIndicatorInsets = UIEdgeInsetsMake(viewHeight, 0, 0, 0);
myTableView.contentInset = UIEdgeInsetsMake(viewHeight, 0, 0, 0);
UIView *myView = [[UIView alloc] initWithFrame:CGRectMake(0,0,self.view.frame.size.width,viewHeight)];
// Configure your view here.
myView.backgroundColor = [UIColor colorWithRed:0.0 green:0.7 blue:0.8 alpha:0.75];
[self.view addSubview:myTableView];
[self.view addSubview:myView];
[myView release];
}
You could also setup your view using an XIB, but I'll leave that as an exercise for you.
Edit: Removed the requirement for the the UITableView delegate methods and custom header view by using the contentInset property instead.
Note: see additional comments below.
For the XIB method:
Create a new UIViewController (with XIB)
Add to it your UITableView and your UIView.
Make them both subviews of the default UIView (called View) and make sure that they are added in the correct order. UITableView should be the first in the list, your view should be second (so your view is on top of the UITableView).
In the .m file implement the minimum for UITableViewDataSource and UITableViewDelegate:
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView;
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section;
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath;
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath;
In Interface Builder select the UITableView list and go to 'Connection Inspector'. There drag dataSource and delegate to 'File Owner'.
Save and run. You should be done now.
I have a view that was created with all of the default UITableView stuff, but now I need to add a header area above where the UITableView is (so the UITableView will scroll normally, but the top 100px of the screen or so will have static header content). I don't see where I can resize the UITableView in IB, and am not sure how to do this.
Does anyone know?
You can use UITableViewDelegate methods to create a custom header view for a table and specify the height, namely tableView:viewForHeaderInSection: and tableView:heightForHeaderInSection:. You can add whatever you like to the view. Here's an example that adds a right aligned UILabel:
- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section {
UIView *headerView = [[UIView alloc] initWithFrame:CGRectMake(0,0,tableView.frame.size.width,30)];
UILabel *headerLabel = [[UILabel alloc] initWithFrame:CGRectMake(60, 0, headerView.frame.size.width-120.0, headerView.frame.size.height)];
headerLabel.textAlignment = NSTextAlignmentRight;
headerLabel.text = [titleArray objectAtIndex:section];
headerLabel.backgroundColor = [UIColor clearColor];
[headerView addSubview:headerLabel];
return headerView;
}
-(CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section {
return 30.0;
}
Why don't you use the UITableView provided header?. As follow:
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section
{
return #"My Title";
}
Additionally you may resize your table view in IB by dragging the borders.
When you add a UIView or one of its subclasses onto the UITableView using IB (just drag a UIView and drop it onto the UPPER part of UITableView of yours), it automatically adds that UIView component and makes it the "tableHeader" component.
Each UITableView has one tableHeader and one tableFooter component reserved...
This way the new view would be a part of the UITable, and scroll with it or appear/disappear or whatever you do to the table. You can change its hidden property if you need conditional behavior.
On the other hand, if you want the header view stay put, as the table scrolls, then it is better to make the table smaller and put the header above it as suggested in other answers...
I finally solved this problem the right way without changing the base class. The one answer to add the view to the parent nav controller is nice but the transitions look horrible.
The fix is actually easy. The trick is to create custom setter and getter for self.tableView property. Then, in loadView, you replace the view with a fresh UIView and add the tableView to it. Then you're free to add subviews around the tableView. Here's how it's done:
In header:
#interface CustomTableViewController : UITableViewController
{
UITableView *tableView;
}
In .m:
- (UITableView*)tableView
{
return tableView;
}
- (void)setTableView:(UITableView *)newTableView
{
if ( newTableView != tableView )
{
[tableView release];
tableView = [newTableView retain];
}
}
- (void)loadView {
[super loadView];
//save current tableview, then replace view with a regular uiview
self.tableView = (UITableView*)self.view;
self.view = [[UIView alloc] initWithFrame:self.tableView.frame];
[self.view addSubview:self.tableView];
//code below adds some custom stuff above the table
UIView *customHeader = [[UIView alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, 20)];
customHeader.backgroundColor = [UIColor redColor];
[self.view addSubview:customHeader];
[customHeader release];
self.tableView.frame = CGRectMake(0, customHeader.frame.size.height, self.view.frame.size.width, self.view.frame.size.height - customHeader.frame.size.height);
}
- (void)viewDidUnload
{
self.tableView = nil;
[super viewDidUnload];
}
Enjoy!
You will have to embed the UITableView in a UIView alongwith another view (which you are referring to as header section).
So, the UIView will have 2 subviews. The header view followed by the table view.
UIView(parent)
UIView (header)
UITableView (table)
Hope this helps.
I like the answer from noodl_es (upvoted), because it provides the functionality and behavior you want, yet you don't have to worry about resizing the UITableView: that is handled for you automatically. However, the solution is best suitable only if the header information pertains specifically to the first section of the table (or if the table has only one section). If the table has more than one section, then the header of the second section will push away the header of the first section when scrolled up, and therefore the header view will not appear to pertain to the whole table.
Found a solution at iphonedevsdk
Instead of doing this:
[tableViewController.view addSubview:viewSubclass];
do this
[tableViewController.navigationController.view addSubview:viewSubclass];
Suppose to have your UITableViewController
#interface MXMTableViewController : UITableViewController <UITableViewDelegate,UIScrollViewDelegate> {
/// your table view interface here
}
and a xib with you simple UITableView defined yet in it, you can do as Mihir says overriding the loadView method like this:
- (void)loadView {
[super loadView];
UIView *mainView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 480)];
self.view = mainView;
[mainView release];
// Add Header View
UIView *headerView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 36)];
headerView.backgroundColor = [UIColor redColor];
[self.view addSubview:headerView];
// now, move your table view down. Check you nib to choose
// the right Y-axis offset
CGRect f = tableView.frame;
f.origin.y += headerView.frame.size.height/2;
tableView.frame = f;
// Add the table view to the container view
[self.view addSubview:self.tableView];
// Add footer
UIView *footerView = [[UIView alloc] initWithFrame:CGRectMake(0, self.tableView.frame.size.height, 320, 125)];
footerView.backgroundColor = [UIColor redColor];
[self.view addSubview:footerView];
[footerView release];
[headerView release];
}
...and that's it. You have a UITableView with fixed header and footer.
PS. You may now use your xib custom views as the header and footer's views.
First a little background info:
I have UIViewController that contains a UITableView. In the loadView method (after initialization of the table), I set the UIViewControllers view to the table view with: self.view = tableView;
What I want is a view on the top of the screen (before the UITableView), that doesn't scroll with the rest of the table view when it is scrolled. I have tried adding my UIView to the table view's tableViewHeader, which displays correctly but scrolls with the rest of the table.
Is there any easy fix for this? Either way, any hints towards a solution is greatly appreciated.
EDIT:
Come to think of it, what I want is something like the stock application where the bottom part is stationary and the rest of the screen is a UITableView. The only difference is that I want the stationary part at the top of the screen.
As kmit has already pointed out, you can easily add more than one subview to your view. So, don't set the table view directly as self.view, but rather create a blank UIView (as container) and add the table view as well as the header view as subviews to that view. You can control the views' extents via their frame attributes. A simple example:
- (void)loadView {
UIView* view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 460)];
[view setAutoresizingMask:UIViewAutoresizingFlexibleHeight|UIViewAutoresizingFlexibleWidth];
// header view
HeaderView* headerView = [[HeaderView alloc] initWithFrame:CGRectMake(0, 0, 320, 182)];
self.headerView = headerView; // in case you need the reference later on
[view addSubview:headerView];
[headerView release];
// table view
UITableView* tableView = [[UITableView alloc] initWithFrame:CGRectMake(0, 182, 320, 186) style:UITableViewStylePlain];
[tableView setAutoresizingMask:UIViewAutoresizingFlexibleHeight|UIViewAutoresizingFlexibleWidth];
tableView.delegate = self;
tableView.dataSource = self;
[view addSubview:tableView];
self.tableView = tableView;
[tableView release];
self.view = view;
[view release];
}
As an alternative to creating the containing UIView manually, you can call [super loadView] at the beginning of your loadView implementation.
Is there a reason you are setting the view of the UIViewController to that of the UITableView? Why not handle the UITableView as a subview? That would allow you to add anything you want above the UITableView -another view, empty space with the view of the UIViewController as your background, etc.